Vertical ultraviolet light emitting device and method for manufacturing the same
Disclosed herein are a vertical ultraviolet light emitting device including: a p-type semiconductor layer including Al; an active layer positioned on the p-type semiconductor layer and including the Al; an n-type semiconductor layer positioned on the active layer and including the Al; a metal contac...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | Disclosed herein are a vertical ultraviolet light emitting device including: a p-type semiconductor layer including Al; an active layer positioned on the p-type semiconductor layer and including the Al; an n-type semiconductor layer positioned on the active layer and including the Al; a metal contact layer positioned on the n-type semiconductor layer and doped with an n type; and a pad formed on the metal contact layer, wherein the metal contact layer has an Al content lower than that of the n-type semiconductor layer, and a method for manufacturing the same. According to the exemplary embodiments of the present invention, the metal contact layer is formed on the n-type semiconductor layer to allow the metal contact layer instead of the n-type semiconductor layer including AlGaN to act as the contact layer, thereby effectively improving the n type contact characteristics of the vertical ultraviolet light emitting device. |
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